Inventor

Tsuyoshi Yamashita

Inventor

Tokyo, JP

Overview

1986–2020

Patent span

Electricity

Primary field (CPC H)

Patents· 76 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G01Rprimary

G01RMeasuring electric variables15%

H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h109%

H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems8%

B41JTypewriters6%

Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications5%

Y10TTechnical subjects covered by former us classification5%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form4%

B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for4%

G10KSound-producing devices3%

B23KSoldering or unsoldering3%

PatentTitleYear

10,850,511Fluid ejection device2020 10,850,506Drive bubble evaluation2020 10,780,705Fluid ejection device2020 10,730,312Fluid ejection device2020 10,661,927Wire inserting device, elongated workpiece winding apparatus and wire inserting method2020 10,469,308Communication adapter for collecting information about a system being monitored2019 10,326,911Mitigating dot placement errors for a print job2019 10,308,020Fluid ejection device2019 10,207,516Fluid ejection device2019 9,784,789'Handler apparatus that conveys a device under test to a test socket and test apparatus including the handler apparatus'2017 9,658,287'Handler apparatus, adjustment method of handler apparatus, and test apparatus'2017 9,606,170'Handler apparatus that conveys a device under test to a test socket and test apparatus that comprises the handler apparatus'2017 9,586,760'Electronic component transfer shuttle'2017 9,535,112'Temperature control apparatus and test system using main flow path and sub flow path'2017 9,340,361'Electronic device transfer apparatus, electronic device handling apparatus, and electronic device testing apparatus'2016 9,221,247'Piezoelectric inkjet die stack'2015 8,939,556'Fluid ejection device'2015 8,876,255'Orifice structure for fluid ejection device and method of forming same'2014 8,839,818'Valve device and temperature adjusting system for electronic device'2014 8,829,739'Power converter for vehicle'2014 8,653,843'Temperature control device and temperature control method'2014 8,526,204'Power converter with electrical switching element'2013 8,164,355'Electronic component pressing device and electronic component test apparatus'2012 8,141,990'Ink ejection device'2012 8,063,653'Temperature control device and temperature control method'2011 8,058,096'Microelectronic device'2011 7,907,042'DC-DC converter with integrated transformer assembly composed of transformer pair'2011 7,825,765'DC-DC converter'2010 7,804,316'Pusher, pusher unit and semiconductor testing apparatus'2010 7,773,399'Control apparatus for inhibiting synchronous-rectifier switching elements at low output current in a voltage transforming apparatus'2010 7,746,670'Dual-transformer type of DC-to-DC converter'2010 7,697,310'Control apparatus for inhibiting synchronous-rectifier switching elements at low output current for a voltage transforming apparatus'2010 7,619,427'Temperature control device and temperature control method'2009 7,586,727'Inrush current limiting switching circuit for power supply'2009 7,570,501'DC-DC converter with capacitor precharging and duty ratio limiting'2009 7,511,473'Pressing member and electronic component handling device'2009 7,405,953'Driving circuit for power switching device'2008 7,344,061'Multi-functional solder and articles made therewith, such as microelectronic components'2008 7,309,981'Pressing member and electronic device handling apparatus'2007 7,289,338'Input to output isolated DC-DC converter'2007 7,254,046'DC-DC converter'2007 7,201,304'Multi-functional solder and articles made therewith, such as microelectronic components'2007 7,182,241'Multi-functional solder and articles made therewith, such as microelectronic components'2007 7,049,841'Heater-equipped pusher, electronic component handling apparatus, and temperature control method for electronic component'2006 7,019,991'Rectifying circuit'2006 6,990,207'Active noise control system'2006 6,972,581'Apparatus for handling electronic components and method for controlling temperature of electronic components'2005 6,956,427'Electrically insulated switching element drive circuit'2005 6,926,190'Integrated circuit assemblies and assembly methods'2005 6,891,954'Vehicle-mounted noise control apparatus'2005 6,859,898'Monitor apparatus for sequential-function-chart-type programmable controller'2005 6,856,128'Semiconductor device testing apparatus and a test tray for use in the testing apparatus'2005 6,741,090'Holding device for electronic part test, and device and method for electronic part test'2004 6,685,250'Noise insulation structure'2004 6,590,383'Contact arm and electronic device testing apparatus using the same'2003 6,529,838'Method of and apparatus for predicting vehicle interior noise'2003 6,508,343'Vibration damper'2003 6,459,259'Tester for semiconductor devices and test tray used for the same'2002 6,456,062'Contact arm and electronic device testing apparatus using the same'2002 6,445,203'Electric device testing apparatus'2002 6,441,083'Polyamidic acid-containing and fine particles-dispersed composition and production process therefor'2002 6,384,593'Semiconductor device testing apparatus'2002 6,275,594'Piezoelectric acoustic device'2001 6,205,226'Piezoelectric acoustic device'2001 6,104,183'Semiconductor device testing apparatus'2000 6,091,181'Piezoelectric acoustic device'2000 5,849,122'Method of fabricating vehicle body panel having honeycomb sandwich structure'1998 5,410,953'Track apparatus for egg breaking mechanisms'1995 5,410,606'Noise canceling method'1995 5,094,318'Automotive sound-proof materials and damping materials therefor'1992 4,996,683'Optical transmission device'1991 4,957,797'Roof lining structure for motor vehicle'1990 4,906,501'Laminated damping material for vehicle and method for welding the material to vehicle body panel'1990 4,881,220'Multiplex communication system for sequence controllers'1989 4,823,909'Vehicular soundproof structure'1989 4,564,913'Flexible transfer machine'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–2006Patents assigned to HONDA MOTOR CO LTD (10)· patent assignee history

1989–2006Based in Wako, JP· patent location history

2000–2017Patents assigned to ADVANTEST CORP (24)· patent assignee history

2000–2017Based in Gunma, JP· patent location history

2002–2020Based in Tokyo, JP· patent location history

2005–2014Based in Anjo, JP· patent location history

2006–2014Patents assigned to DENSO CORP (11)· patent assignee history

2011–2020Patents assigned to HEWLETT PACKARD DEVELOPMENT CO (12)· patent assignee history

2011–2016Patents assigned to YAMASHITA TSUYOSHI (11)· patent assignee history

2011–2020Based in Corvallis, OR, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
ADVANTEST CORP	24	2000–2017
HEWLETT PACKARD DEVELOPMENT CO	12	2011–2020
DENSO CORP	11	2006–2014
YAMASHITA TSUYOSHIself	11	2011–2016
HONDA MOTOR CO LTD	10	1989–2006

Locations

Location	Patents	Span
Tokyo, JP	15	2002–2020
Anjo, JP	13	2005–2014
Corvallis, OR, US	12	2011–2020
Gunma, JP	8	2000–2017
Wako, JP	8	1989–2006